diff --git a/library/core/src/ub_checks.rs b/library/core/src/ub_checks.rs
index 60306389b18dd..159010c611e8b 100644
--- a/library/core/src/ub_checks.rs
+++ b/library/core/src/ub_checks.rs
@@ -68,7 +68,7 @@ macro_rules! assert_unsafe_precondition {
             #[track_caller]
             const fn precondition_check($($name:$ty),*) {
                 if !$e {
-                    ::core::panicking::panic_nounwind_fmt(
+                    ::core::panicking::panic_nounwind(
                         concat!("unsafe precondition(s) violated: ", $message)
                     );
                 }
@@ -150,7 +150,7 @@ pub(crate) const fn is_nonoverlapping(
         let src_usize = src.addr();
         let dst_usize = dst.addr();
         let Some(size) = size.checked_mul(count) else {
-            crate::panicking::panic_nounwind_fmt(
+            crate::panicking::panic_nounwind(
                 "is_nonoverlapping: `size_of::<T>() * count` overflows a usize",
             )
         };